/* D一口宝宝水 — thebabywater.com · brand palette from VI 1.0 */
@font-face{font-family:"Noto Sans SC";src:url(../fonts/NotoSansSC-sub.woff2?v=202611031515) format("woff2");font-weight:300 900;font-display:swap}
@font-face{font-family:"Lato";src:url(../fonts/lato-400.woff2?v=202611031515) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Lato";src:url(../fonts/lato-700.woff2?v=202611031515) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Lato";src:url(../fonts/lato-900.woff2?v=202611031515) format("woff2");font-weight:900;font-display:swap}

:root{
  --brand:#D775A1; --brand-deep:#B9568A; --brand-soft:#FFB4C7;
  --coral:#FF7769; --orange:#FFC66C; --yellow:#FBEF90; --blue:#C0D4FF;
  --ink:#4A2E3A; --ink-2:#7A5D69; --ink-3:#A68F99;
  --bg:#FFFBFC; --tint:#FFF2F6; --line:#F1DDE5; --card:#FFFFFF;
  --r-lg:28px; --r:20px; --r-sm:14px;
  --shadow:0 1px 2px rgba(74,46,58,.04),0 12px 32px -12px rgba(215,117,161,.28);
  --font:"Lato","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav-h) + 12px)}
body{margin:0;font-family:var(--font);font-size:16px;color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-deep)}
sup{font-size:.62em;line-height:0;vertical-align:super}
sup a{text-decoration:none;font-weight:700}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0}
.wrap{width:min(1160px,100% - 40px);margin-inline:auto}
.narrow{width:min(820px,100% - 40px)}
.m-only{display:none}
@media (max-width:640px){.m-only{display:inline}}
svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- type ---------- */
.eyebrow{font-family:"Lato",sans-serif;font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}
.eyebrow--light{color:#fff;opacity:.85}
.display{font-size:clamp(34px,4.6vw,60px);line-height:1.18;font-weight:900;letter-spacing:.02em}
.display--sm{font-size:clamp(30px,3.6vw,48px)}
.display em,.h2 em{font-style:normal;color:var(--brand)}
.h2{font-size:clamp(26px,3.2vw,40px);line-height:1.3;font-weight:800}
.h3{font-size:clamp(20px,2vw,24px);font-weight:700;margin:56px 0 20px}
.lead{font-size:clamp(15px,1.3vw,17px);color:var(--ink-2);margin-top:14px;max-width:560px}
.note{font-size:12.5px;color:var(--ink-3);margin-top:14px;line-height:1.6}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:99px;border:0;background:var(--brand);color:#fff;font:600 15px var(--font);text-decoration:none;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s;box-shadow:0 8px 20px -10px rgba(185,86,138,.8)}
.btn:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn--ghost{background:#fff;color:var(--brand-deep);box-shadow:inset 0 0 0 1.5px var(--brand-soft)}
.btn--ghost:hover{background:var(--tint)}
.btn--sm{height:38px;padding:0 18px;font-size:14px}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.iconbtn{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);display:grid;place-items:center;cursor:pointer;transition:all .2s}
.iconbtn:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:50;height:var(--nav-h);display:flex;align-items:center;gap:24px;padding:0 clamp(16px,4vw,40px);
  background:rgba(255,251,252,.86);backdrop-filter:saturate(1.5) blur(16px);-webkit-backdrop-filter:saturate(1.5) blur(16px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.is-scrolled{border-color:var(--line)}
.nav__logo img{height:24px;width:auto}
.nav__links{display:flex;gap:clamp(14px,2.2vw,28px);margin-left:auto;font-size:14.5px}
.nav__links a{color:var(--ink-2);text-decoration:none;transition:color .2s}
.nav__links a:hover,.nav__links a.is-active{color:var(--brand-deep)}
@media (max-width:900px){.nav__links{display:none}.nav .btn{margin-left:auto}}

/* ---------- scroll film: text panel + framed video (no overlap) ---------- */
.film{position:relative;height:var(--len,400vh);background:var(--bg)}
.film__sticky{position:sticky;top:0;height:100vh;height:100svh;padding-top:var(--nav-h);overflow:hidden}
.film__grid{height:100%;width:min(1240px,100% - 40px);margin:0 auto;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(24px,4vw,64px);align-items:center;padding:24px 0 32px}
.film--rev .film__grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}
.film--rev .film__panel{order:2}
.film__panel{position:relative;display:flex;flex-direction:column;justify-content:center;height:100%;max-height:640px}
.film__steps{position:relative;min-height:340px}
.fstep{position:absolute;inset:0 0 auto 0;opacity:0;transform:translateY(24px);transition:opacity .5s ease,transform .6s cubic-bezier(.2,.7,.2,1);pointer-events:none}
.fstep.is-on{opacity:1;transform:none;pointer-events:auto}
.film__chapters{list-style:none;margin:0 0 28px;padding:0;display:flex;gap:8px;flex-wrap:wrap}
.film__chapters li{font-size:13px;padding:6px 14px;border-radius:99px;background:var(--tint);color:var(--ink-3);cursor:pointer;transition:all .25s}
.film__chapters li.is-on{background:var(--brand);color:#fff}
.film__bar{height:3px;border-radius:3px;background:var(--line);overflow:hidden;margin-top:24px;max-width:240px}
.film__bar i{display:block;height:100%;background:var(--brand);transform-origin:left;transform:scaleX(var(--p,0))}
.film__stage{position:relative;height:100%;max-height:720px;border-radius:var(--r-lg);overflow:hidden;background:#F8DEE4;box-shadow:var(--shadow)}
.film--rev .film__stage{background:#E7C7CE}
.film__canvas,.film__poster{position:absolute;inset:0;width:100%;height:100%}
.film__poster{object-fit:cover;transition:opacity .4s}
.film.is-ready .film__poster{opacity:0}

@media (max-width:820px){
  .film__grid,.film--rev .film__grid{grid-template-columns:1fr;grid-template-rows:minmax(0,46%) minmax(0,54%);gap:16px;padding:12px 0 18px}
  .film__stage{order:0;max-height:none;border-radius:22px}
  .film__panel,.film--rev .film__panel{order:1;justify-content:flex-start;max-height:none}
  .film__chapters{margin-bottom:14px}
  .film__chapters li{font-size:12px;padding:4px 11px}
  .film__steps{min-height:0;flex:1}
  .display{font-size:30px}.display--sm{font-size:27px}
  .fstep .lead{font-size:14.5px;margin-top:10px}
  .fstep .btns{margin-top:16px}.fstep .btn{height:42px;padding:0 18px;font-size:14px}
  .fstep .note{display:none}
  .film__bar{margin-top:8px}
}

/* ---------- trust strip ---------- */
.trust{border-block:1px solid var(--line);background:#fff}
.trust__row{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;padding:22px 0}
.trust__item{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center}
.trust__item svg{grid-row:span 2;width:36px;height:36px;padding:7px;border-radius:12px;background:var(--tint);color:var(--brand)}
.trust__item b{font-size:16px;line-height:1.2}
.trust__item span{font-size:12.5px;color:var(--ink-3);line-height:1.3}
@media (max-width:820px){.trust__row{grid-template-columns:repeat(2,1fr);gap:16px}.trust__item:last-child{grid-column:span 2}}

/* ---------- sections ---------- */
.sec{padding:clamp(72px,10vw,120px) 0}
.sec--tint{background:var(--tint)}
.sec--pink{background:linear-gradient(135deg,var(--brand) 0%,#C9659A 100%);color:#fff}
.sechead{position:relative;margin-bottom:44px;max-width:720px}
.sechead--center{text-align:center;margin-inline:auto}
.sechead--center .lead{margin-inline:auto}
.sechead__mascot{position:absolute;right:-130px;top:-10px;width:88px;height:auto;animation:bob 6s ease-in-out infinite}
@media (max-width:1000px){.sechead__mascot{position:static;width:64px;margin-bottom:12px}}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-8px) rotate(4deg)}}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* why */
.why{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:stretch}
.why__photo{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow)}
.why__photo img{width:100%;height:100%;object-fit:cover}
.why__cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.card h3{font-size:17px;margin:14px 0 6px}
.card p{font-size:14.5px;color:var(--ink-2);line-height:1.7}
.card b{color:var(--ink)}
.card__icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center}
.card__icon--pink{background:#FFE3EB;color:var(--brand-deep)}
.card__icon--blue{background:#E6EEFF;color:#5D74C2}
.card__icon--yellow{background:#FEF8D2;color:#B39300}
.card__icon--coral{background:#FFE5E1;color:#E0503F}
@media (max-width:900px){.why{grid-template-columns:1fr}.why__photo{max-height:340px}}
@media (max-width:560px){.why__cards{grid-template-columns:1fr}}

/* tabs */
.tabs{display:inline-flex;padding:5px;border-radius:99px;background:#fff;border:1px solid var(--line);gap:4px;margin-bottom:24px;flex-wrap:wrap}
.tabs button{border:0;background:none;font:600 15px var(--font);color:var(--ink-2);padding:10px 22px;border-radius:99px;cursor:pointer;transition:all .25s}
.tabs button[aria-selected=true]{background:var(--brand);color:#fff}
.panel{animation:fade .45s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.panel__grid{display:grid;grid-template-columns:260px 1fr;gap:28px;background:#fff;border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow)}
.panel__stat{border-radius:var(--r);background:linear-gradient(160deg,var(--tint),#FFE3EB);padding:28px;display:flex;flex-direction:column;justify-content:center}
.panel__stat span{font-size:13px;color:var(--ink-3)}
.panel__stat b{font-size:28px;color:var(--brand-deep);line-height:1.3;margin:6px 0}
.panel__stat small{font-size:13px;color:var(--ink-2)}
.panel__body h3{font-size:20px;margin-bottom:12px}
.ticks{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:10px}
.ticks li{position:relative;padding-left:28px;color:var(--ink-2);font-size:15px}
.ticks li::before{content:"";position:absolute;left:0;top:6px;width:18px;height:18px;border-radius:50%;background:var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.2l2.6 2.6L12 5.4' fill='none' stroke='%23fff' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat}
.ticks b{color:var(--ink)}
.tip{background:#FFFBEA;border:1px solid #F7E9A8;border-radius:var(--r-sm);padding:14px 18px;font-size:14.5px;color:var(--ink-2)}
@media (max-width:760px){.panel__grid{grid-template-columns:1fr;padding:20px;gap:18px}.tabs{display:flex}.tabs button{flex:1;padding:10px 8px;font-size:14px}}

/* stepper */
.stepper{display:grid;grid-template-columns:280px 1fr;gap:24px}
.stepper__nav{list-style:none;margin:0;padding:0;display:grid;gap:8px;align-content:start}
.stepper__nav button{width:100%;display:flex;align-items:center;gap:14px;text-align:left;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);padding:12px 16px;font:600 15px var(--font);color:var(--ink-2);cursor:pointer;transition:all .25s}
.stepper__nav i{font-style:normal;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--tint);color:var(--brand-deep);font:700 13px "Lato",sans-serif;flex:none}
.stepper__nav button[aria-selected=true]{border-color:var(--brand);color:var(--ink);box-shadow:var(--shadow)}
.stepper__nav button[aria-selected=true] i{background:var(--brand);color:#fff}
.stepper__card{position:relative;background:linear-gradient(150deg,#fff 40%,var(--tint));border:1px solid var(--line);border-radius:var(--r-lg);padding:40px 40px 32px;min-height:300px;display:flex;flex-direction:column}
.stepper__num{font:900 72px/1 "Lato",sans-serif;color:var(--brand-soft);opacity:.7}
.stepper__content{position:relative;flex:1;margin-top:16px}
.sstep{display:none;animation:fade .45s ease}
.sstep.is-on{display:block}
.sstep h3{font-size:24px;margin-bottom:12px}
.sstep p{font-size:16px;color:var(--ink-2);max-width:560px}
.stepper__ctrl{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}
@media (max-width:820px){.stepper{grid-template-columns:1fr}.stepper__nav{grid-template-columns:repeat(3,1fr)}.stepper__nav button{flex-direction:column;gap:6px;padding:10px 6px;font-size:12.5px;text-align:center}.stepper__card{padding:26px 22px}.stepper__num{font-size:52px}.sstep h3{font-size:20px}}

/* science switch */
.switch{position:relative;display:inline-grid;grid-template-columns:1fr 1fr;padding:5px;border-radius:99px;background:#fff;border:1px solid var(--line);margin-bottom:28px}
.switch button{position:relative;z-index:1;border:0;background:none;font:600 15px var(--font);color:var(--ink-2);padding:10px 26px;cursor:pointer;transition:color .3s}
.switch button[aria-selected=true]{color:#fff}
.switch__thumb{position:absolute;top:5px;bottom:5px;left:5px;width:calc(50% - 5px);border-radius:99px;background:var(--ink-3);transition:transform .45s cubic-bezier(.3,.8,.2,1),background .45s}
.switch.is-can .switch__thumb{transform:translateX(100%);background:var(--brand)}
.pack{display:grid;grid-template-columns:220px 1fr;gap:36px;align-items:center;background:#fff;border-radius:var(--r-lg);padding:32px 40px;box-shadow:var(--shadow)}
.pack__visual{position:relative;height:300px;display:grid;place-items:center}
.pack__img{position:absolute;max-height:280px;width:auto;transition:opacity .5s,transform .6s cubic-bezier(.2,.7,.2,1)}
.pack__img--can{filter:drop-shadow(0 20px 24px rgba(185,86,138,.3))}
.pack__list{list-style:none;margin:0;padding:0;display:grid;gap:14px;grid-area:1/2}
.pack__list li{display:flex;flex-direction:column;padding:14px 18px;border-radius:var(--r-sm);background:var(--tint);color:var(--ink-2);font-size:14.5px;transition:opacity .5s,transform .5s}
.pack__list b{color:var(--ink);font-size:16px}
.pack__list--plastic li{background:#F3EEF0}
.pack[data-show=plastic] .pack__img--can,.pack[data-show=can] .pack__img--plastic{opacity:0;transform:scale(.9) translateY(10px)}
.pack[data-show=plastic] .pack__list--can,.pack[data-show=can] .pack__list--plastic{opacity:0;visibility:hidden}
.pack[data-show=plastic] .pack__list--plastic li,.pack[data-show=can] .pack__list--can li{animation:fade .5s ease both}
.pack__list li:nth-child(2){animation-delay:.08s!important}.pack__list li:nth-child(3){animation-delay:.16s!important}
.stats3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.rstat{background:#fff;border-radius:var(--r);padding:26px;border:1px solid var(--line)}
.rstat__num{font:900 clamp(36px,4vw,52px)/1 "Lato",sans-serif;color:var(--brand-deep);font-variant-numeric:tabular-nums}
.rstat__num small{font:700 15px var(--font);margin-left:4px;color:var(--brand)}
.rstat p{font-size:14.5px;color:var(--ink-2);margin:12px 0 10px}
.rstat cite{font-style:normal;font-size:12.5px;color:var(--ink-3)}
.rstat cite a{text-decoration:none}
.callout{display:flex;gap:16px;align-items:flex-start;margin-top:20px;padding:20px 24px;border-radius:var(--r);background:#EEF3FF;color:var(--ink-2);font-size:14.5px}
.callout svg{flex:none;color:#5D74C2;margin-top:2px}
.callout b{color:var(--ink)}
@media (max-width:820px){.pack{grid-template-columns:1fr;padding:22px;gap:12px}.pack__visual{height:220px}.pack__img{max-height:200px}.pack__list{grid-area:auto}.pack[data-show=plastic] .pack__list--can,.pack[data-show=can] .pack__list--plastic{display:none}.stats3{grid-template-columns:1fr}}

/* dashboard */
.dash{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.dash__card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.dash__card--wide{grid-column:span 4}
.dash__card h3{font-size:15px;color:var(--ink-2);font-weight:600}
.dash__card h3 small{font-weight:400;color:var(--ink-3);margin-left:6px}
.dash__big{font:900 38px/1.1 "Lato",sans-serif;color:var(--ink);margin-top:14px}
.dash__big small{font:600 14px var(--font);color:var(--ink-3);margin-left:4px}
.dash__sub{font-size:13.5px;color:var(--ink-3);margin-top:6px}
.bars{display:grid;gap:14px;margin-top:20px}
.bar{display:grid;grid-template-columns:200px 1fr 60px;gap:16px;align-items:center;font-size:14.5px;color:var(--ink-2)}
.bar__track{height:14px;border-radius:99px;background:var(--tint);overflow:hidden}
.bar__track i{display:block;height:100%;border-radius:99px;background:var(--ink-3);width:0;transition:width 1.4s cubic-bezier(.2,.7,.2,1)}
.bar--brand .bar__track i{background:linear-gradient(90deg,var(--brand-soft),var(--brand))}
.bar--brand{color:var(--ink);font-weight:700}
.bars.is-in .bar__track i{width:calc(var(--v) / 25 * 100%)}
.bar b{font:700 16px "Lato",sans-serif;text-align:right}
.ph{margin-top:22px}
.ph__scale{position:relative;height:12px;border-radius:99px;background:linear-gradient(90deg,#FF9E8F,var(--yellow),#BFE8C8,var(--blue),#B6A3F0)}
.ph__scale i{position:absolute;top:50%;left:calc((var(--v) - 4) / 6 * 100%);width:20px;height:20px;margin:-10px 0 0 -10px;border-radius:50%;background:#fff;border:4px solid var(--brand);box-shadow:0 2px 8px rgba(0,0,0,.15)}
.ph__labels{display:flex;justify-content:space-between;font-size:11.5px;color:var(--ink-3);margin-top:8px}
.nut summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center}
.nut summary::-webkit-details-marker{display:none}
.nut summary::after{content:"+";font-size:22px;color:var(--brand);transition:transform .3s}
.nut[open] summary::after{transform:rotate(45deg)}
.nut table{width:100%;border-collapse:collapse;margin-top:16px;font-variant-numeric:tabular-nums}
.nut th,.nut td{padding:10px 12px;border-bottom:1px solid var(--line);font-size:14.5px}
.nut th{text-align:left;font-weight:400;color:var(--ink-2)}
.nut td{text-align:right;font-weight:700}
@media (max-width:900px){.dash{grid-template-columns:1fr 1fr}.dash__card--wide{grid-column:span 2}.bar{grid-template-columns:1fr 56px;gap:6px 12px}.bar span{grid-column:span 2}}

/* calculator */
.calc{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center}
.calc__intro p:not(.eyebrow){opacity:.9;margin-top:14px;max-width:380px}
.calc__intro .h2{color:#fff}
.calc__mascot{width:110px;margin-top:28px;animation:bob 6s ease-in-out infinite}
.calc__box{background:#fff;color:var(--ink);border-radius:var(--r-lg);padding:32px;box-shadow:0 30px 60px -30px rgba(80,20,50,.5)}
.seg{border:0;padding:0;margin:0 0 22px;display:flex;gap:8px;flex-wrap:wrap}
.seg legend{font-weight:700;margin-bottom:10px;width:100%;padding:0}
.seg label{flex:1;position:relative}
.seg input{position:absolute;opacity:0}
.seg span{display:block;text-align:center;padding:10px 6px;border-radius:12px;border:1.5px solid var(--line);font-weight:600;font-size:14.5px;cursor:pointer;transition:all .2s;white-space:nowrap}
.seg input:checked+span{border-color:var(--brand);background:var(--tint);color:var(--brand-deep)}
.seg input:focus-visible+span{outline:2px solid var(--brand);outline-offset:2px}
.range{display:block;font-weight:600;font-size:15px;margin-bottom:18px}
.range output{color:var(--brand-deep);font:900 18px "Lato",sans-serif;margin:0 2px}
.range input{display:block;width:100%;margin-top:8px;accent-color:var(--brand);height:28px}
.calc__result{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:8px}
.calc__result div{background:var(--tint);border-radius:var(--r-sm);padding:14px;text-align:center}
.calc__result span{display:block;font-size:12.5px;color:var(--ink-3)}
.calc__result b{font:900 30px/1.2 "Lato",sans-serif;color:var(--brand-deep)}
.calc__result small{display:block;font-size:12px;color:var(--ink-2)}
@media (max-width:820px){.calc{grid-template-columns:1fr;gap:28px}.calc__box{padding:22px}.calc__mascot{display:none}.calc__result b{font-size:24px}}

/* quiz */
.quiz{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow);text-align:center}
.quiz__progress{height:6px;border-radius:9px;background:var(--tint);overflow:hidden;margin-bottom:28px}
.quiz__progress i{display:block;height:100%;width:0;background:var(--brand);transition:width .4s}
.quiz__q{font-size:clamp(18px,2vw,22px);font-weight:700;min-height:70px}
.quiz__q small{display:block;font:700 12px "Lato",sans-serif;letter-spacing:.2em;color:var(--brand);margin-bottom:8px}
.quiz__a{display:flex;gap:12px;justify-content:center;margin:24px 0 8px}
.quiz__a .btn{min-width:120px}
.quiz__a .btn.is-right{background:#2FB67C;color:#fff;box-shadow:none}
.quiz__a .btn.is-wrong{background:#F06A5A;color:#fff;box-shadow:none}
.quiz__fb{min-height:24px;color:var(--ink-2);font-size:15px;max-width:560px;margin:12px auto 0;text-align:left}
.quiz__fb b{display:block;margin-bottom:4px;color:var(--ink)}
.quiz__next{margin-top:20px}
@media (max-width:560px){.quiz{padding:24px 18px}}

/* tips */
.tips{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tipcard{background:#fff;border-radius:var(--r);padding:24px;border:1px solid var(--line)}
.tipcard svg{width:44px;height:44px;padding:10px;border-radius:14px;background:var(--tint);color:var(--brand)}
.tipcard h3{font-size:16.5px;margin:14px 0 6px}
.tipcard p{font-size:14px;color:var(--ink-2);line-height:1.7}
@media (max-width:900px){.tips{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.tips{grid-template-columns:1fr}}

/* source & proof */
.source{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.source__img{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow)}
.source__img img{width:100%;aspect-ratio:16/9;object-fit:cover}
.proof{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.proof__item{margin:0;background:var(--tint);border-radius:var(--r);padding:12px;display:flex;flex-direction:column}
.proof__item img{border-radius:10px;background:#fff;aspect-ratio:3/4;object-fit:cover;width:100%}
.proof__item--award{background:#FDE57A}
.proof__item--award img{object-fit:contain;background:#FDD300}
.proof__item figcaption{font-size:13px;font-weight:600;margin-top:10px;line-height:1.45;text-align:center}
@media (max-width:900px){.source{grid-template-columns:1fr;gap:24px}.proof{grid-template-columns:repeat(2,1fr)}.proof__item--award{grid-column:span 2}.proof__item--award img{aspect-ratio:auto;max-height:300px}}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin-bottom:10px;overflow:hidden;transition:box-shadow .25s}
.faq details[open]{box-shadow:var(--shadow)}
.faq summary{list-style:none;cursor:pointer;padding:20px 56px 20px 24px;font-weight:700;font-size:16px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:24px;top:50%;width:10px;height:10px;margin-top:-7px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:transform .3s}
.faq details[open] summary::after{transform:rotate(225deg);margin-top:-2px}
.faq details p{padding:0 24px 22px;color:var(--ink-2);font-size:15px}

/* buy */
.buy{background:linear-gradient(135deg,var(--brand) 0%,#BE5C8F 100%);color:#fff;padding:clamp(64px,9vw,110px) 0}
.buy__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.buy__img{margin:0}
.buy__img img{filter:drop-shadow(0 40px 50px rgba(80,10,40,.35))}
.buy__text>img{width:200px;margin-bottom:22px}
.buy .h2{color:#fff;margin-bottom:10px}
.buy__text>p{opacity:.9}
.buy__channels{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-top:28px}
.qr{display:flex;gap:14px;align-items:center;background:rgba(255,255,255,.14);border-radius:var(--r);padding:12px 18px 12px 12px;font-size:14px;line-height:1.6}
.qr img{width:96px;border-radius:12px;background:#fff;padding:6px}
.buy__links p{font-size:14.5px;margin-bottom:6px}
.buy__links b{margin-right:10px;opacity:.85;font-weight:600}
.buy__links a{color:#fff;font:900 20px "Lato",sans-serif;text-decoration:none}
@media (max-width:820px){.buy__grid{grid-template-columns:1fr;gap:20px}}

/* refs & footer */
.refs{padding:56px 0;background:#fff;border-top:1px solid var(--line)}
.refs .h3{margin-top:0}
.refs ol{padding-left:22px;margin:0;display:grid;gap:8px;font-size:13.5px;color:var(--ink-2)}
.refs li:target{background:var(--tint);border-radius:6px}
.foot{background:#3B2430;color:#E3CCD6;padding:44px 0 calc(36px + env(safe-area-inset-bottom));font-size:13px}
.foot__grid img{width:140px;margin-bottom:16px;opacity:.9}
.foot a{color:#fff}
.foot .note{color:#B8A0AB}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.fstep,.pack__img,.bar__track i{transition:none}
  .sechead__mascot,.calc__mascot{animation:none}
}
[hidden]{display:none!important}
.dash__big{white-space:nowrap}
@media (max-width:560px){.dash__big{font-size:28px}.dash__card{padding:18px}}

/* =====================================================================
   v3 · "Clay & Water" layer — UI/UX Pro Max (Claymorphism + Soft UI,
   micro-interactions, water-fill visualisation) + frontend-design
   (one signature element: the feeding-bottle gauge; no generic labels)
   ===================================================================== */
:root{
  --spring:cubic-bezier(.34,1.56,.64,1);
  --clay:inset -5px -6px 12px rgba(185,86,138,.10),inset 5px 6px 12px rgba(255,255,255,.95),0 14px 30px -14px rgba(185,86,138,.45);
  --clay-sm:inset -3px -3px 7px rgba(185,86,138,.10),inset 3px 3px 7px rgba(255,255,255,.95),0 8px 18px -10px rgba(185,86,138,.45);
  --clay-press:inset -2px -2px 5px rgba(185,86,138,.08),inset 4px 4px 9px rgba(185,86,138,.16),0 3px 8px -6px rgba(185,86,138,.4);
}
body{background:
  radial-gradient(1200px 600px at 110% -10%,#FFE6EE 0,transparent 60%),
  radial-gradient(900px 500px at -10% 30%,#EEF2FF 0,transparent 60%),var(--bg);background-attachment:fixed}

/* labels: sentence-case chips instead of tracked all-caps */
.eyebrow{display:inline-block;text-transform:none;letter-spacing:.02em;font:700 13px var(--font);color:var(--brand-deep);background:#FFE8F0;padding:5px 12px;border-radius:99px;margin-bottom:16px}

/* reveal: no blanket fade-ups (only the hero gets an entrance) */
.reveal{opacity:1;transform:none;transition:none}

/* clay buttons with spring press */
.btn{border-radius:18px;height:50px;box-shadow:inset -3px -4px 8px rgba(120,30,80,.22),inset 3px 4px 8px rgba(255,255,255,.35),0 12px 22px -10px rgba(185,86,138,.75);transition:transform .25s var(--spring),box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(2px) scale(.97);box-shadow:inset 2px 3px 8px rgba(120,30,80,.3)}
.btn--ghost{background:#fff;box-shadow:var(--clay-sm)}
.btn--ghost:active{box-shadow:var(--clay-press)}
.btn:focus-visible,.tabs button:focus-visible,.stepper__nav button:focus-visible,.switch button:focus-visible,.buddy:focus-visible,.gauge:focus-visible{outline:3px solid var(--brand);outline-offset:3px}

/* clay surfaces */
.card,.tipcard,.rstat,.dash__card,.faq details,.panel__grid,.stepper__card,.quiz,.pack,.calc__box{border:0;box-shadow:var(--clay);border-radius:26px}
.card,.tipcard{transition:transform .35s var(--spring)}
.card:hover,.tipcard:hover{transform:translateY(-4px) rotate(-.4deg)}
.card__icon,.tipcard svg,.trust__item svg{box-shadow:var(--clay-sm);border-radius:16px}
.tabs,.switch{border:0;box-shadow:var(--clay-press);background:#FFF5F8}
.tabs button[aria-selected=true]{box-shadow:inset -2px -3px 6px rgba(120,30,80,.2),inset 2px 3px 6px rgba(255,255,255,.35),0 6px 12px -6px rgba(185,86,138,.7);transition:background .25s,transform .3s var(--spring)}
.tabs button:active{transform:scale(.95)}
.stepper__nav button{border:0;box-shadow:var(--clay-sm);transition:transform .3s var(--spring),box-shadow .2s}
.stepper__nav button:active{transform:scale(.96);box-shadow:var(--clay-press)}
.stepper__nav button[aria-selected=true]{box-shadow:inset 0 0 0 2px var(--brand),var(--clay-sm)}
.seg span{border:0;box-shadow:var(--clay-sm);transition:transform .3s var(--spring)}
.seg input:checked+span{box-shadow:inset 0 0 0 2px var(--brand),var(--clay-press);transform:scale(.98)}
.quiz__a .btn{min-width:130px;height:56px;font-size:17px}
.film__chapters li{box-shadow:var(--clay-sm);transition:transform .3s var(--spring),background .25s}
.film__chapters li:active{transform:scale(.94)}
.film__chapters li.is-on{box-shadow:inset -2px -3px 6px rgba(120,30,80,.2),0 6px 12px -6px rgba(185,86,138,.7)}

/* hero stage: toy-like clay frame with mascots around it */
.stagewrap{position:relative;height:100%;max-height:720px}
.film__stage{border:8px solid #fff;box-shadow:var(--clay),0 40px 80px -40px rgba(185,86,138,.6);border-radius:36px}
.buddy{position:absolute;z-index:3;border:0;background:none;padding:0;cursor:pointer;width:clamp(70px,8.5vw,120px);-webkit-tap-highlight-color:transparent;
  transform:translate3d(var(--mx,0px),var(--my,0px),0) rotate(var(--r,0deg));transition:transform .5s var(--spring);filter:drop-shadow(0 14px 16px rgba(120,40,80,.22))}
.buddy img{width:100%;height:auto;pointer-events:none}
.buddy--pink{left:-38px;top:12%;--r:-8deg}
.buddy--blue{right:-30px;top:38%;--r:6deg;width:clamp(62px,7.5vw,104px);transition-delay:.08s}
.buddy--yellow{left:6%;bottom:-26px;--r:-4deg;width:clamp(86px,10vw,140px);transition-delay:.16s}
.buddy.is-squish img{animation:squish .6s var(--spring)}
@keyframes squish{0%{transform:scale(1)}25%{transform:scale(1.18,.82)}55%{transform:scale(.9,1.12)}100%{transform:scale(1)}}
.speech{position:absolute;z-index:4;right:6%;top:-18px;max-width:min(320px,80%);background:#fff;color:var(--ink);font-size:14.5px;font-weight:600;line-height:1.55;padding:12px 16px;border-radius:18px;box-shadow:var(--clay);opacity:0;transform:translateY(8px) scale(.96);transition:opacity .3s,transform .45s var(--spring);pointer-events:none}
.speech::after{content:"";position:absolute;left:28px;bottom:-8px;width:16px;height:16px;background:#fff;transform:rotate(45deg);border-radius:3px}
.speech.is-on{opacity:1;transform:none}

/* one orchestrated entrance on load (pure CSS, runs once) */
#hero .film__stage{animation:stageIn 1.1s var(--spring) .1s both}
#hero .buddy{animation:buddyIn .8s var(--spring) both}
#hero .buddy--pink{animation-delay:.55s}#hero .buddy--blue{animation-delay:.7s}#hero .buddy--yellow{animation-delay:.85s}
#hero .film__panel{animation:panelIn .9s cubic-bezier(.2,.7,.2,1) .2s both}
@keyframes stageIn{from{opacity:0;scale:.9;translate:0 24px}to{opacity:1;scale:1;translate:0 0}}
@keyframes buddyIn{from{scale:0}to{scale:1}}
@keyframes panelIn{from{opacity:0;translate:0 24px}to{opacity:1;translate:0 0}}

/* signature: feeding-bottle scroll gauge */
.gauge{position:fixed;z-index:40;right:22px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:var(--brand-deep);transition:transform .35s var(--spring)}
.gauge:hover{transform:translateY(-50%) scale(1.06) rotate(-4deg)}
.gauge:active{transform:translateY(-50%) scale(.95)}
.gauge__svg{width:46px;height:115px;overflow:visible;filter:drop-shadow(0 10px 14px rgba(185,86,138,.3))}
.gauge__nipple{fill:#F6C68A}
.gauge__cap{fill:var(--brand)}
.gauge__glass{fill:rgba(255,255,255,.8)}
.gauge__outline{fill:none;stroke:#fff;stroke-width:3}
.gauge__ticks path{stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;opacity:.55}
.gauge__water{transform:translateY(calc(146px - var(--fill,0) * 108px));transition:transform .25s linear}
.gauge__wave{fill:#9CC4FF;animation:wave 2.6s linear infinite}
@keyframes wave{to{transform:translateX(60px)}}
.gauge__ml{font:700 11px "Lato",sans-serif;background:#fff;border-radius:99px;padding:2px 8px;box-shadow:var(--clay-sm);white-space:nowrap}
.gauge__ml b{font-size:13px}
@media (max-width:820px){.gauge{right:10px;top:auto;bottom:calc(14px + env(safe-area-inset-bottom));transform:none}.gauge:hover{transform:scale(1.04)}.gauge:active{transform:scale(.95)}.gauge__svg{width:34px;height:85px}.gauge__ml{font-size:10px;padding:1px 6px}}

/* calculator: cans fill with water */
.cans{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:18px 8px 6px;min-height:96px}
.can{position:relative;width:34px;height:62px;border-radius:9px 9px 7px 7px;background:#F3E6EC;box-shadow:var(--clay-sm);overflow:hidden;animation:pop .5s var(--spring) both}
.can::before{content:"";position:absolute;inset:0 0 auto;height:7px;background:var(--brand);z-index:2}
.can i{position:absolute;inset:auto 0 0;height:var(--lvl,100%);background:linear-gradient(180deg,#B9D4FF,#8FB6F5);transition:height .8s var(--spring)}
@keyframes pop{from{transform:scale(0)}to{transform:scale(1)}}
.cans__note{width:100%;text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* quiz: bubble burst on a right answer */
.quiz{position:relative;overflow:visible}
.burst{position:absolute;width:14px;height:14px;border-radius:50%;pointer-events:none;background:radial-gradient(circle at 30% 30%,#fff,rgba(192,212,255,.85));box-shadow:inset 0 0 0 1.5px rgba(150,180,240,.6);animation:burst .9s ease-out forwards}
@keyframes burst{from{transform:translate(0,0) scale(.4);opacity:1}to{transform:translate(var(--dx),var(--dy)) scale(1);opacity:0}}

/* wavy top edge on the two pink bands */
.sec--pink,.buy{position:relative}
.sec--pink::before,.buy::before{content:"";position:absolute;left:0;right:0;top:-1px;height:30px;background:var(--bg);
  -webkit-mask:url(../img/wave.svg) 0 0/240px 30px repeat-x;mask:url(../img/wave.svg) 0 0/240px 30px repeat-x}
.buy::before{background:var(--tint)}

@media (max-width:820px){
  .stagewrap{max-height:none}
  .film__stage{border-width:5px;border-radius:26px}
  .buddy--pink{left:-10px;top:auto;bottom:-14px;width:64px}
  .buddy--blue{right:-8px;top:-10px;width:58px}
  .buddy--yellow{display:none}
  .speech{right:auto;left:8%;top:auto;bottom:12px;font-size:13px;padding:9px 12px;max-width:72%}
  .speech::after{display:none}
}
@media (prefers-reduced-motion:reduce){
  .gauge__wave,.can,.burst,.buddy.is-squish img{animation:none!important}
  .buddy{transition:none!important}
  #hero .film__stage,#hero .buddy,#hero .film__panel{animation:none!important}
}

/* v3 fixes: phone tip as toast (never over the video), gauge lives in the top bar on phones, pink sliders */
.range input{-webkit-appearance:none;appearance:none;height:28px;background:none}
.range input::-webkit-slider-runnable-track{height:10px;border-radius:99px;background:linear-gradient(90deg,var(--brand) var(--pct,50%),#F4E4EA var(--pct,50%));box-shadow:inset 1px 2px 4px rgba(120,30,80,.15)}
.range input::-moz-range-track{height:10px;border-radius:99px;background:#F4E4EA}
.range input::-moz-range-progress{height:10px;border-radius:99px;background:var(--brand)}
.range input::-webkit-slider-thumb{-webkit-appearance:none;width:28px;height:28px;margin-top:-9px;border-radius:50%;background:#fff;box-shadow:var(--clay-sm),0 0 0 3px var(--brand);transition:transform .25s var(--spring)}
.range input::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:#fff;border:3px solid var(--brand)}
.range input:active::-webkit-slider-thumb{transform:scale(1.15)}
@media (max-width:820px){
  .speech{position:fixed;left:12px;right:12px;bottom:calc(14px + env(safe-area-inset-bottom));top:auto;max-width:none;z-index:60}
  .gauge{top:calc(var(--nav-h) / 2);bottom:auto;right:104px;transform:translateY(-50%) rotate(90deg)}
  .gauge:hover,.gauge:active{transform:translateY(-50%) rotate(90deg)}
  .gauge__svg{width:22px;height:56px;filter:none}
  .gauge__ml{display:none}
}

@media (max-width:820px){.gauge{z-index:55}}